stuart



2 Sheets-Shet 1.

(No Model.)

J. J. STUART.

ORB PULVBRIZBR.

No. 478,209. Patented'July 5, 1892.

WHA/5335's.'

' l Jaw/ By /hw (No Model.) 2 sheets-sheet 2.

J. J. STUART. 0R15: PULVBRIZ-ER.

No. 478,209. Patented my 5, 189.2.

WIT/V588 5., Arofrrvfrs.

THE ohms versus no., maw-umm, wAsnmaYom n. e.

UNITED VSTATES PATENT OFFICE.

J OHNAJ STUART, OF NEW YORK, N. Y.

ORE-PULVERIZE'R.

SPECIFICATION forming part of Letters Patent No. 478,209, dated July 5, 1892. Application filed October 28, 1891. Serial No. 410,071- (NO mOdel-l To all whom t may concern:

Be it known that I, JOHN J. STUART;a resident of the city, county, and State of New York, have inventedV a certain new and useful Improvement in Ore-Pulverizers, ot' which the following is a.full, clear, and exact description.

My invention relates to a certain new and useful improvement in ore-pulverizers; and it consists in the novel arrangement of parts hereinafter described, whereby the ore is continuously triturated and pulverized in a closed vessel in the presence of owing wa'- ter and the powdered or pulverized ore is removed by said water to an appropriate receptacle.

It consists, also, in the combination of parts hereinafter more fully set forth and claimed.

In the drawings, Figurel isa vertical section on the line l 1,.'Fig. 3, of the improved apparatus. Fig. 2 is a side elevation ot the same. Fig. 3 is a Vcross-section on the line 3 3, Fig. 2. Fig. 4t is a plan; and Fig.,5 is a side elevation, partly sectional, illustrating a detail of construction of the triturating or pulverizing shoes.

To the npper' cross-piece d of a suitable frame-work A is secured a steam chest and cylinder B. This steam-cylinder B is traversed by a suitable plunger or piston D and rod d. Immediately below this steam-cylinder B is placed a closed receptacle E, mount.- ed upon the base a of the frame-work A. This closed receptacle E is traversed by the rod d of the piston D and by one or more shoes F F, secured to said rod d. The closed receptacle E is provided near its upper end with a suitable chute or aperture e, through which the ore to be crushed is introduced, and a water-pipe f, through which a stream of water Vmay be continuously passed into the receptacle. The bottom of the closed receptacle is by preference composed of steel or similar metallic block G, mounted on one or more layers of foundation G. On one side of the receptacle E and below and by preference opposite the chute e is placed a trough g, fitted with a screen g and leading from said receptacle E to a pit or cistern h. The

method of securing the shoes F F to the rod d or to the preceding shoe is shown in Figs. 1, 4, and 5. It consists in transversely channeling and vertically tapering the shoe and tting the tapering end of the rod d or aprojection cl2 on one ot the shoes F into said taper, so that the tapered shaft d of the rod or shoe extends to a distance below theupper edge of the transverse channel. To remove a shoe from the rod in this construction, a wedge d3 is introduced Vinto' the transverse channel, as shown in Fig. 5. This constructionrenders the rod d and its shoes comparatively elastic, and the jar of the shoe upon the ore to be crushed is greatly avoided.

Y The operation` of my apparatus is as follows: Ore is introduced into the clonsedreceptacle E and falls upon the steel block G. Water from pipe f is also introduced toa height not exceeding the screened outlet g. The piston D, its rod d, and the shoes F F are moved vertically, crushing the ore upon said block G. The water circulating in the receptacle carries "the finest particles of ore so crushed up to the surface of the Water in the closed receptacle and through the screened outlet g and along the trough gto the pit h. The heavy particles of ore remain at the bottom of the receptacle and are subjected to the triturating or crushing operation of the shoes upon said bottom until the ore has been sufticiently pulverized to be removed by the flow ing-Water through the screen and trough to the pit. Fresh ore may be introduced into the receptacle at regular intervals, and the operation is practically continuous. It the lower actuatingshoe is worn out, it is easily replaced without disturbing the piston-rod.

Having now described my invention, what I claim is- A continuous ore pulverizer combining therein a stamping mechanism consisting ot` the piston, piston-rod, and removable shoes adapted to be dislodged therefrom by Wedges introduced into transverse openings, a closed receptacle adapted to be partially filled with water, an ore-introducing chute above the sur` face of the water, an induction water-pipe leading into the top of and continuously flowing into the closed receptacle, and an outletpipe arranged on a level with and adapted to receive the water, together with the particles carried thereby, all arranged and operated substantially as described. A

JOHN J. STUART. IVitnesses: f

HARRY M. TUEK,

HENRY E. EVERDING.

IOO 

